United States · Series B startup

Who invested in Firestorm Labs

2 rounds we have observed, with the 11 investors named in them. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.

Defence TechDronesManufacturing

Raised 6 months ago

Funding summaryUpdated 5 Nov 2026

$87Mraised across 2 rounds since 2026, from 3 sources

$5.0MRound$82MSeries B
Latest round
Series B, $82MApr 2026
Led by
Washington Harbour Partners Lp
Step-upi
16.4×
Investors
11 (1 led)
See who backed them

The funding story

Each circle is a round, placed by date and sized by amount. The line above is the running total.

20262027
$5.0MRound$82MSeries B
First round
Round, $5.0M
Jan 2026
Biggest round
$82M
Series B · Apr 2026
Between rounds
3 months
from the last two

The rounds

  1. Apr 2026
    Series B$82M11 new

    Reported by TechCrunch and 1 otherSEC filing: $35M sold, first sale Feb 2026

  2. Jan 2026
    Round$5.0M

    No investor was named in the report.

    Filed with the SEC (Form D); no report of this raise yetSEC filing: $5.0M sold, first sale Jan 2026

Funding filed with regulators

Firestorm Labs filed 8 raises, $85M in all. Filings say how much was sold and to how many investors; they never name the investors.

  1. Mar 2026$35M18 investorsof $75M offeredSEC Form D
  2. Jan 2026$5.0M2 investorsSEC Form D
  3. Oct 2025$2.5M10 investorsof $5.0M offeredSEC Form D
  4. Jun 2025$10M4 investorsSEC Form D
  5. Sept 2024$20M33 investorsof $25M offeredSEC Form D
  6. Apr 2024$2.5M1 investoroptionsof $3.0M offeredSEC Form D
  7. Nov 2023$8.0M15 investorsdebtof $10M offeredSEC Form D
  8. Sept 2022$2.1M5 investorsoptionsof $7.0M offeredSEC Form D

Who was in which round

The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.

Round2026Series B2026Washington Harbour Partners LpLNew Enterprise AssociatesAlumni VenturesCraft VenturesIn-Q-Tel645 VenturesLockheed MartinGeodesic CapitalMotley Fool VenturesBooz Allen Ventures

Everyone who backed them

Washington Harbour Partners LpPrivate equity1round, led 1
New Enterprise AssociatesVC firm1round
Alumni VenturesVC firm1round
Craft VenturesVC firm1round
In-Q-TelAccelerator1round
645 VenturesVC firm1round
Lockheed MartinCorporate VC1round
Geodesic CapitalVC firm1round
Motley Fool VenturesCorporate VC1round
Booz Allen VenturesCorporate VC1round
OndasGrowth equity1round

Missing a round, or an investor who was in one? Tell us.

Quick answers about Firestorm Labs

Who invested in Firestorm Labs?

Firestorm Labs's investors include Washington Harbour Partners Lp, New Enterprise Associates, Alumni Ventures, Craft Ventures and In-Q-Tel, and 6 more on record. Washington Harbour Partners Lp led its latest round.

How much has Firestorm Labs raised?

Firestorm Labs has raised $87M across 2 rounds since 2026.

When did Firestorm Labs last raise?

Firestorm Labs's most recent round was a Series B of $82M in Apr 2026, led by Washington Harbour Partners Lp.

What was Firestorm Labs's biggest round?

Its most recent round, $82M in Apr 2026, is also its largest on record.

Who backed Firestorm Labs first?

Firestorm Labs's first round on record, in Apr 2026, was backed by Washington Harbour Partners Lp, New Enterprise Associates and Alumni Ventures and 8 others.

What stage is Firestorm Labs at?

Firestorm Labs's latest named round is a Series B, in Apr 2026.

Where is Firestorm Labs based?

Firestorm Labs is based in the United States.

Who led Firestorm Labs's rounds?

Washington Harbour Partners Lp led the Series B in 2026.

Companies like Firestorm Labs

In the same sector, and raised in the last eighteen months.

Tutor Intelligence$109M · Nov 2026Northwood Space$505M · Nov 2026Agility Robotics$1.3B · Oct 2026Group14 Technologies$632M · Oct 2026Iris TechnologyOct 2026Rendezvous Robotics$28M · Oct 2026

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